Countries that did the opposite of what FDR did recovered quickly, and never reached the abysmal depths that we did.
This is false. In my own country Chancellor Brüning's austerity lead to increasing unemployment which was one among many causes for the rise of fascism.
Um, the fascists took power in the 1920's - In Italy.
Look up at your chart
again. Your unemployment started its permant drop in
1932, a year before the Nazis took power. US Unemployment didn't start recovering until around 1938 or '39, completely
off your chart. Why did you start to recover in '32 and we didn't start to recover until '39? That would be FDR, and disconnecting wages from productivity, and prices from competition. Also note that your big drops in unemployment occured early when your spending was a
third what it was later.
Under FDR, there could be no equilibrium because he was freezing things all the time. Stimulus doesn't matter if you keep the patient in a coma.
In such a situation the only players who can counteract the vicious cycle of a recessions (firms don't invest when they face falling demand, consumers don't spend when they face the thread of unemployment) is the government via printing money or deficit spending.
Or you could allow prices to fall to increase demand, which Roosevelt wouldn't allow, and allow wages to find their equilibrium level, which Roosevelt wouldn't do. Unemployment was extremely high, so Roosevelt mandated large wage
increases. Does that make any economic sense to you?
You can read the articles or textbooks which show the underemployment equilibrium dynamics or you can simply boil it down to the formula of "somebody has to buy stuff". Or you can remain an ignorant Hooverite and believe that austerity and the confidence fairy end recessions. I stopped to believe in fairies a long time ago.
Hoover didn't go for
austerity, he went for a massive tax increases and stimulus spending. As I said, Roosevelt
doubled down on Hoover's policy, saying Hoover's massive taxing and spending increases weren't
big enough. In response to the crash and recession, Hoover increased federal spending by almost 60% (which is, again,
off your chart). Then Roosevelt took over, and things got much worse.